Those are very nice examples, but unfortunately they're common coins that aren't worth much. I'm not a Lincoln cent guy so take this with a few grains of salt, but there are relatively few Lincoln errors that are genuinely valuable. On the other hand, there are many that people want to believe are errors, but are really just coins with minor flaws (or post mint damage) that aren't worth more than face value. Just because the man who assembled this collection labeled some of them as errors doesn't mean they really are. Not the valuable kind, I mean.